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A method for preparing l-arabinose by using pea peel as raw material and by-product xylose

A technology of arabinose and pea peel, which is applied in the field of functional sugar preparation, can solve the problems that restrict the production cost of l-arabinose, it is difficult to directly crystallize, and the process is complicated, so as to reduce the subsequent processing load and avoid salt ions intake and reduce environmental pollution

Active Publication Date: 2015-08-12
FUTASTE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pea peels are rich in crude fiber. There are foreign literature reports that the pectin in pea peels is rich in xylose, but there are few studies on the use of pea peels to produce l-arabinose. At present, l- The production of arabinose is difficult to crystallize directly due to the low content of arabinose in raw materials in industrial production. Chromatographic separation is often used to separate other miscellaneous sugars to obtain high-purity crystalline arabinose, but this process is complicated. The operation is difficult and has become a bottleneck restricting the high production cost of l-arabinose

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Take 100g of pea peel raw material, add 2000g of potassium hydroxide solution with a mass concentration of 0.05%, and cook in a cooking pot at 95°C for 50min; filter the pretreatment mixture, pour the filtrate out, and obtain the filter residue;

[0026] 2) Preparation of l-arabinose solution: Add the filter residue obtained above into the steam explosion equipment, increase the pressure to 1.2MPa, hold the pressure for 10 minutes, and steam-explode instantaneously to obtain the filter residue after steam explosion, and add mud wet 1000g of purified water about 7 times the weight of the mud, heated up to 80°C, kept warm for 30 minutes, filtered, collected the filtrate, added 700g of purified water about 5 times the wet weight of the mud to the filter mud, raised the temperature to 50°C, kept warm for 10 minutes, filtered, and obtained The sludge and filtrate were filtered, and the filtrate was collected to obtain a total of 1570 ml of steam explosion extract, wherein ...

Embodiment 2

[0031] 1) Take 100g of pea peel raw material, add 1500g of aqueous sodium hydroxide solution with a mass concentration of 0.08%, and cook in a cooking pot at 90°C for 60min; filter the pretreatment mixture, and pour the filtrate to obtain a filter residue.

[0032] 2) Preparation of l-arabinose liquid: add the filter residue obtained above into the steam explosion equipment, increase the pressure to 1.5MPa, hold the pressure for 8 minutes, and steam-explode instantaneously to obtain the filter residue sludge after steam explosion, and add mud wet 1000g of purified water about 7 times the weight of the mud, heated up to 70°C, kept warm for 50min, filtered, collected the filtrate, added 800g of purified water about 6 times the wet weight of the mud to the filter mud, raised the temperature to 50°C, kept warm for 10min, filtered, and obtained The sludge and filtrate were filtered, and the filtrate was collected to obtain a total of 1660ml of steam explosion extract, wherein the yiel...

Embodiment 3

[0037] 1) Take 100g of pea peel raw material, add 1000g of sodium carbonate aqueous solution with a mass concentration of 0.1%, and cook in a cooking pot at 100°C for 60min; filter the pretreatment mixture, pour out the filtrate, and obtain the filter residue

[0038] 2) Preparation of l-arabinose solution: Add the filter residue obtained above into the steam explosion equipment, increase the pressure to 1.0MPa, hold the pressure for 8 minutes, and steam-explode instantaneously to obtain the filter residue after steam explosion, and add mud wet 1000g of purified water about 7 times the weight of the mud, heated to 70°C, kept warm for 50min, filtered, collected the filtrate, added 700g of purified water about 5 times the wet weight of the mud to the filter mud, raised the temperature to 50°C, kept warm for 10min, filtered, and obtained The sludge and filtrate were filtered, and the filtrate was collected to obtain a total of 1560 ml of steam explosion extract, wherein the yield ...

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Abstract

The invention provides a method for preparing 1-pectinose from pea pods as raw materials with coproduction of xylose. The method comprises the following steps: preprocessing the raw materials, extracting 1-pectinose by a steam explosion method, and extracting xylose by acid hydrolysis or an acid steam explosion method. According to the method, part of impurities in the pea pods are removed through an alkali preprocessing process, so that the 1-pectinose purity can be improved; the pea pod raw materials are hydrolyzed by virtue of the steam explosion method, and a high-content 1-pectinose solution can be obtained without acid consumption and can be directly crystallized by one-step ultrafiltration in a refinement process without chromatographic separation to obtain 1-pectinose, so that the production process is simplified, the operation is easy, and the production cost is reduced; hydrolysis residues after extraction of 1-pectinose is subjected to acid hydrolysis or steam explosion to coproduce the xylose, so that the pea pod raw materials are fully utilized.

Description

technical field [0001] The invention belongs to the technical field of functional sugar preparation, and in particular relates to a method for preparing l-arabinose by using pea peel as a raw material and by-producting xylose. Background technique [0002] Pea belongs to the leguminous plant, which originated in western Asia. Because of its strong adaptability, it has a wide geographical distribution all over the world. It has very high nutritional value, among which the starch content is the highest, reaching 52-55%. Many domestic vermicelli manufacturers The starch in pea is used as raw material to produce vermicelli, and the pea skin rich in crude fiber is used as a by-product as feed, and its added value is very low. There are few domestic researches on the utilization of pea skin. Therefore, it is urgent to develop a method to use pea The skin turns waste into treasure, creating higher economic value. Pea peels are rich in crude fiber. There are foreign literature repo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C13K13/00
Inventor 聂永来曹玉华王成福孙鲁梁学超张亮邵竞峰
Owner FUTASTE PHARM CO LTD
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